CN1259534C - Dual-source reversible heating system - Google Patents
Dual-source reversible heating system Download PDFInfo
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- CN1259534C CN1259534C CN 00100102 CN00100102A CN1259534C CN 1259534 C CN1259534 C CN 1259534C CN 00100102 CN00100102 CN 00100102 CN 00100102 A CN00100102 A CN 00100102A CN 1259534 C CN1259534 C CN 1259534C
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Abstract
The present invention relates to a new program of a heating system, which aims to reduce energy consumption and weaken the dependency relationship of a thermoelectric cogeneration system for a common electric network. The present invention mainly adopts the measures that a thermoelectric cogeneration machine set is arranged in a heating air condition station, a double-purpose efficient radiator of winters and summers and an electric refrigerating-heating air condition machine set are arranged for users simultaneously, and the double-purpose efficient radiator and the electric refrigerating-heating air condition machine set jointly form a double source air conditioner set. Heat energy and electric energy which are generated by the thermoelectric cogeneration system in a heating season are respectively supplied for the efficient radiator and the electric refrigerating-heating air condition machine set in the double source air conditioner set. Cold water formed by concentration in summer also leads to the efficient radiator. The production and the use method of the heat energy belongs to a reversible type, and can reduce energy consumption obviously.
Description
Technical field
The present invention relates to the technology that the energy effectively utilizes, it is particularly related to the application of co-generation unit aspect heat supply or cooling, relates to a kind of double source heating air-conditioner system specifically and utilizes the method for this system's heat supply or cooling.
Background technology
The heating system of existing heating adopts boiler more, and the shortcoming of this system is that primary energy consumption is too high, and mostly in the scope of 45kg mark coal/GJ (heat) to 65kg mark coal/GJ (heat), and the primary energy utilization ratio only is 55%～65%.
In order to cut down the consumption of energy, to adopt co-generation unit to come heat supply at present, but adopt this system still to have following defective:
The consumption reduction amplitude is undesirable, and the power supply consumption of coal is many in that 250g (mark coal)/more than the kWh, the heat supply coal consumption only is the level about 40kg mark coal/GJ (heat);
In practice, " electricity determining by heat " is that the physical substance of cogeneration of heat and power determines, also is the basic prerequisite of its create beneficial result, that is to say, obtain heat and just must produce electricity, so profit and loss must appear in electric weight, must not only purchase the electricity relation but also the sale of electricity relation takes place with electrical network;
The electricity that produces in the coproduction mode exists many contradiction and problem with public electric wire net occupying electricity market, receive price and whether participate in aspect such as peak load regulation network in the process of selling, restricted the development of cogeneration of heat and power;
If cogeneration of heat and power factory and public electric wire net are isolated, there is stronger dependence between can producing because of the heat energy of electrical energy production and coproduction with it again, be difficult to satisfy simultaneously the desirability of electric load and thermic load.
In addition, at present the thermoelectric cold cogeneration of implementing still is conventional cogeneration of heat and power when needs supply heat, supplies with the user then the heat that produces is further become cold when needs supply cold after, therefore it is the mutation of cogeneration of heat and power, has same problem with simple cogeneration of heat and power.
Summary of the invention
The method that the object of the invention is to provide a kind of double source heating air-conditioner system and utilizes this system's heat supply or cooling.By cogeneration of heat and power, supply heat or cold in " coproduction single for " mode, to overcome the defective that prior art exists, wherein " coproduction " refer to the coproduction of heat and electricity, " single for " refers to that the single of heat or cold supplies.Like this,, make primary energy consumption obviously reduce, than the coal consumption reduction by 20%～40% of boiler heat supplying because the production and the occupation mode invertibity of heat energy are higher; As the source that has surplus heat is used as the heat pump low-temperature heat source, and then primary energy consumption can obtain reduction by a larger margin.By method and system provided by the invention, make end product have only heat or cold, only need satisfy a kind of load (thermic load or refrigeration duty) curve, make the electricity and the heat of producing consume synchronous variation simultaneously in the coproduction mode, break away from the relation of interdependence of co-generation unit and public electric wire net, thereby overcome the deficiencies in the prior art.
The present invention also provides a kind of double source heating air-conditioner system, and this system comprises:
The co-generator group is arranged at the heating air-conditioner station, is used for output electric energy and heat energy;
The double source air-conditioner group of user side is made up of high-efficiency radiator and electronic air conditioner unit;
Transmission line of electricity links to each other with generator in the described co-generation unit, and the electric energy of described co-generator group output is sent into heat supply or cooling in the described electronic air conditioner unit, forms one " source " that the user obtains heat or cold supply;
Heat exchangers for district heating, the heat energy of described co-generator group output are admitted to described heat exchangers for district heating and produce hot water;
Pipe network is used for the hot water of described heat exchangers for district heating or generation or the cold water of heating air-conditioner station production are sent into described high-efficiency radiator heat supply or cooling, forms another " source " that the user obtains heat or cold supply.
Hot machine in the described cogeneration units adopts the water vapour circulation or is the combined cycle of end circulation with the water vapour circulation, is being lower than in non-peakload heating period heat supply water temperature in 55 ℃ the scope to regulate.
The invention provides a kind of method of utilizing system's heat supply of double source heating air-conditioner or heating, this method is:
At the heating air-conditioner station co-generator group is set;
Described co-generator group is become with the hot mechanism that arbitrary pattern is fit to cogeneration of heat and power by generator;
Described co-generator group output electric energy and heat energy;
The electronic air conditioner unit that described electric energy is sent into user side by transmission line of electricity forms one " source " that the user obtains the heat supply with the heat pump mode heat supply;
Described heat energy is admitted in the heat exchangers for district heating that is provided with in the described heating air-conditioner station and produces hot water, then the hot water of producing is sent into heat supply in user's the high-efficiency radiator by pipe network, forms another " source " that the user obtains the heat supply;
Like this, each user has " source " of two different described supply heats, i.e. double source simultaneously.
The electronic air conditioner unit that described electric energy is sent into user side by transmission line of electricity forms one " source " that the user obtains the cold supply with refrigeration machine mode cooling;
In described heating air-conditioner station, produce cold water, then the cold water of producing is sent into cooling in the high-efficiency radiator of user side by pipe network, form another " source " that the user obtains the cold supply;
Like this, each user has " source " of two different described supply colds, i.e. double source simultaneously.
Hot machine in the described cogeneration units is as adopting the water vapour circulation or being the combined cycle of end circulation with the water vapour circulation, then regulates in non-peakload heating period heat supply water temperature is being lower than 55 ℃ scope.
Beneficial effect of the present invention is, the present invention adopts the method and system supply heat or the cold of " coproduction is single to supply " by cogeneration of heat and power, and the production of heat energy and occupation mode invertibity are higher, make primary energy consumption obviously reduce, than the method and system reduction by 20%～40% of routine;
Utilize if any the auxiliary thermal source cooling warm air conditioner unit that is fit to, then primary energy consumption can obtain reduction by a larger margin;
Because the electricity and the heat of producing in the coproduction mode consume synchronous variation simultaneously, deal with same load curve jointly, have broken away from the relation of interdependence of co-generation unit and public electric wire net;
At user side high-efficiency radiator and electronic air conditioner unit are set, the two constitutes " double source " air-conditioner group jointly, source is the heat that produces by the coproduction mode or the converted cold of heat thus, another source is to be converted into needed heat of user or cold by the electric energy that the coproduction mode produces by heat pump principle or refrigeration machine principle, therefore electric power is not the product of confessing of terminal, just all is consumed in the electronic air conditioner unit as intermediate products;
If the hot machine in the cogeneration units adopts is the water vapour circulation or is the combined cycle of end circulation with the water vapour circulation, can in being lower than 55 ℃ scope, regulate at the heat supply coolant-temperature gage of non-peak heating load heating period, be beneficial to further cut down the consumption of energy.
Description of drawings
Fig. 1 is the system schematic of the embodiment of the invention.
The specific embodiment
The present invention is a kind of double source heating air-conditioner system and the method for utilizing this system's heat supply or cooling.Be included in the heating air-conditioner station co-generator group is set; Described co-generator group output electric energy and heat energy; The electronic air conditioner unit that described electric energy is sent into user side by transmission line of electricity is with the heat pump mode heat supply, or described electric energy is sent into the electronic air conditioner unit of user side with refrigeration machine mode cooling by transmission line of electricity; Described heat energy is admitted in the heat exchangers for district heating that is provided with in the described heating air-conditioner station and produces hot water, then the hot water of producing is sent into heat supply in user's the high-efficiency radiator by pipe network, perhaps in described heating air-conditioner station, produce cold water, then the cold water of producing is sent into cooling in the high-efficiency radiator of user side by pipe network.
Hot machine in the cogeneration units adopts the water vapour circulation or is the combined cycle of end circulation with the water vapour circulation as described, then regulates in the heating period heat supply water temperature of non-peakload is being lower than 55 ℃ scope.
User in the present embodiment is the heating air-conditioner user.
1 couple of the present invention further specifies below in conjunction with accompanying drawing.
In an embodiment of the present invention, to the residential quarters heat supply of 400,000 squares of construction areas in cities and towns, North China.
Scheme originally is to adopt the boiler of simple heat supply, needs 40 tons/hour of quantity of steams altogether by the design load, considers the allowance that peakload is required, two in the boiler of installing natural gas fuel, and every capacity is 25 tons/hour, calorific capacity of natural gas is 37680kJ/Nm
3, annual heating period air demand is 6,100,000 standard cubic meters, natural gas price
3, it is 1,100 ten thousand yuan that annual heating needs fuel cost.
According to dual-source heat-supply method of the present invention, co-generator group 1,2,3 is set, heat exchangers for district heating 7 at the heating air-conditioner station, the steam turbine TRT 2,3 of 6000kW is equipped with in the described generating set, its live steam parameter is: 35bar, and 435 ℃, needing the vapour amount is 30 tons/hour; 1 two of installing gas fired-boilers, every quantity of steam is 20 tons/hour;
This system comprises transmission line of electricity 4, and pipe network 8 adopts the direct-type grid.
In dead season, user's electronic air conditioner unit heats with heat pump mode; Average behavior coefficient of heat pump is 2.5 during this; The heat pump heat supply amount is 1: 1.55 with the ratio of pipe network heating load; Design heating coolant-temperature gage is 55 ℃, and the nothing left thermal source can be supported utilization.
When system moves, fuel is sent in the boiler 1, steam drive steam turbine TRT 2,3 output electric energy and the heat energy of producing, wherein, described electric energy is conveyed into by transmission line of electricity 4 in electronic air conditioner unit 6 of the user 5 and heats with heat pump mode, simultaneously, described heat energy is sent into heating in user 5 the high-efficiency radiator 9 by heat exchangers for district heating 7.Because the steam turbine that present embodiment adopts is the water vapour circulation, and used high-efficiency radiator at user side, so between the non-freeze-up of heating season, in the coproduction unit, produce low-grade heat, (promptly not being higher than 55 ℃ heating water) is sent to the high-efficiency radiator 9 in user's the double source air-conditioner group.
By adopting system and method for the present invention, it be 470 ten thousand steres that year needs amount of natural gas, natural gas price
3, it is 8,460,000 yuan that annual heating needs fuel cost.
Like this, compare with simple employing boiler heating, take 23% in the annual fuel savings of heating season, amount to 2,500,000 yuan, the primary energy consumption amount has obtained significantly reducing; And, broken away from the relation of interdependence of co-generation unit and public electric wire net because the electricity and the heat of producing in the coproduction mode consume synchronous variation simultaneously.
Hot machine in the described cogeneration units can also be gas turbine, internal combustion engine and gas engine etc.If adopt gas-steam combined Cycle Unit or other high efficiency thermoelectric coproduction unit or the thermal source of having a surplus can support utilization, then saving of fuel is more remarkable.
Need to adopt double source cold supply system of the present invention and method under the air-conditioning cooling situation in the heated term, energy consumption also can descend to some extent, has improved the year utilization rate of equipment simultaneously, helps reducing annual heating air-conditioner cost.
In addition, at the heating air-conditioner station peakload device 10 and temperature adjustment tower 11 can also be set; And by adopting peakload device 10 further to improve the temperature of confessing hot water, adopt temperature adjustment tower 11 can regulate the inlet water temperature of webmaster heater 7, avoid the restriction of coproduction heat further to guarantee generated energy.
The foregoing description only is used to illustrate the present invention, but not is used to limit the present invention.
Claims (4)
1. double source heating air-conditioner system is characterized in that comprising:
By generator and the co-generator group that any hot mechanism that is applicable to cogeneration of heat and power becomes, be arranged at the heating air-conditioner station, be used for output electric energy and heat energy;
The double source air-conditioner group of user side is made up of high-efficiency radiator and electronic air conditioner unit;
Transmission line of electricity links to each other with generator in the described co-generation unit, and the electric energy of described co-generator group output is sent into heat supply or cooling in the described electronic air conditioner unit;
Heat exchangers for district heating, the heat energy of described co-generator group output are admitted to described heat exchangers for district heating and produce hot water; Pipe network is used for the hot water of described heat exchangers for district heating generation or the cold water of heating air-conditioner station production are sent into described high-efficiency radiator heat supply or cooling.
2. system according to claim 1, it is characterized in that, hot machine in the described cogeneration units adopts the water vapour circulation or is the combined cycle of end circulation with the water vapour circulation, is being lower than in non-peakload heating period heat supply water temperature in 55 ℃ the scope to regulate.
3. a method of utilizing the described double source heating air-conditioner of claim 1 system heating/cooling is characterized in that,
The co-generator group that is become with any hot mechanism that is applicable to cogeneration of heat and power by generator is set at the heating air-conditioner station;
Described co-generator group output electric energy and heat energy;
Described electric energy is sent into the electronic air conditioner unit of user side with the heat pump mode heat supply or with refrigeration machine mode cooling by transmission line of electricity;
Described heat energy is admitted in the heat exchangers for district heating that is provided with in the described heating air-conditioner station and produces hot water, then the hot water of producing is sent into heat supply in user's the high-efficiency radiator by pipe network; Perhaps produce cold water, then the cold water of producing is sent into cooling in the high-efficiency radiator of user side by pipe network at described heating air-conditioner station.
4. method according to claim 3, it is characterized in that, hot machine in the described cogeneration units adopts the water vapour circulation or is the combined cycle of end circulation with the water vapour circulation, is being lower than in non-peakload heating period heat supply water temperature in 55 ℃ the scope to regulate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00100102 CN1259534C (en) | 2000-01-10 | 2000-01-10 | Dual-source reversible heating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00100102 CN1259534C (en) | 2000-01-10 | 2000-01-10 | Dual-source reversible heating system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1257987A CN1257987A (en) | 2000-06-28 |
| CN1259534C true CN1259534C (en) | 2006-06-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00100102 Expired - Fee Related CN1259534C (en) | 2000-01-10 | 2000-01-10 | Dual-source reversible heating system |
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| Country | Link |
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| CN (1) | CN1259534C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101871439A (en) * | 2010-03-25 | 2010-10-27 | 刘方亮 | Device for generating, refrigerating and heat supplying by solar energy and biomass energy |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3911467B2 (en) * | 2002-09-25 | 2007-05-09 | 出光興産株式会社 | Energy supply system |
| KR100644832B1 (en) * | 2004-12-28 | 2006-11-14 | 엘지전자 주식회사 | Cogeneration system |
| CN100458313C (en) * | 2006-05-26 | 2009-02-04 | 陈则韶 | Heat pump hot water machine set of water-containing internal circulation heat-exchanging loop |
| CN101532744B (en) * | 2008-03-10 | 2011-07-27 | 苏庆泉 | Heat pump circulating system and method thereof |
| CN102510098B (en) * | 2011-10-23 | 2013-11-06 | 西安交通大学 | Extraction condensing cogeneration and straight condensing thermal power combined dispatching system and method |
-
2000
- 2000-01-10 CN CN 00100102 patent/CN1259534C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101871439A (en) * | 2010-03-25 | 2010-10-27 | 刘方亮 | Device for generating, refrigerating and heat supplying by solar energy and biomass energy |
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| Publication number | Publication date |
|---|---|
| CN1257987A (en) | 2000-06-28 |
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Granted publication date: 20060614 Termination date: 20140110 |